Home / 4,831.45-7,248.29-1,909.78

Finding the Fourth Proportional to 4,831.45, 7,248.29 and 1,909.78

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Solution

The fourth proportional to 4,831.45, 7,248.29 and 1,909.78 is: 2,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.45 : 7,248.29 = 1,909.78 : x
  2. Step 2: Convert to fraction form
    4,831.45/7,248.29 = 1,909.78/x
  3. Step 3: Cross multiply
    4,831.45x = 7,248.29 × 1,909.78
  4. Step 4: Simplify right side
    4,831.45x = 13,842,611.61
  5. Step 5: Solve for x
    x = 13,842,611.61/4,831.45
  6. Step 6: Final answer
    x = 2,865.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.